EBRO cycle-locks are installed where powdered media is discharged from silos, receiver tanks and bigbags and dosed in many cases. They are also used for feeding into downstream production processes, as well as for inertisation of products during transfer operations.

1. 4.13
CYCLE LOCK SYSTEM SOLUTION
Cycle locks for holding bulk materials and powdered media with an
automation unit for venting and bleeding.
MECHANICAL CHARACTERISTICS
Nominal widths: DN 50 - DN 600
Connection: PN 6, 10, 16
Volume of chamber: customer specific
Temperature range: 0°C to +55°C
Permissible operating
pressure:
max. 10 bar
Permissible differential
pressure:
max. 10 bar
Supply air: 6 bar
GENERAL NOTES
- Very variable application because all EBRO valves can be
integrated into the system
- Communication using conventional signal technology
(binary inputs and outputs)
- Possible to integrate into existing control systems without any
problems
- Remote access via Ethernet (optionally via Wlan) using the
integrated web visualisation tool
- Self-learning adaptation of the activation times to fluctuations in
the process values
- Intelligent service management system for preventative
maintenance
- In order to increase the operational availability of the system,
changes in the activation times for the valves (e.g. due to
blockages or valve wear) are reported
- Stand-alone operation possible
- All standard field bus interfaces available
- Control unit detachable
- ATEX Zone 1/21 applicable
- Dosing and discharging bulk goods
- Pneumatic conveying technology
- Power plant technology
- Weighing technology
- Bagging plants
FIELDS OF APPLICATION e.g.:
ELECTRICAL CHARACTERISTICS
Power supply: 230 V / 50Hz
Operation / visualisation: via 4” touch panel
Protection class: IP 65
Temperature range for lock: -20 - 70°C
Temperature range for control: 0 - 55°C
A Phönix PLC with a touch panel is used to operate and visualise
the processes.
Cycle Lock

2. CYCLE LOCK SYSTEM SOLUTION
Subject to change without notice
The medium is in the current process and shut
off on the inlet side. Before every individual cycle,
the output valve is opened for safety reasons to
ensure that any possible residual media can fall
out of the filling pipe.
The medium falls into the filling pipe and is
held on the output side. The filling time can
be freely selected. The filling process can be
cancelled based on the volume of material re-
quired using a filling level sensor.
FUNCTIONAL SCHEMATIC
FILLINGINITIAL STATE
The isolation valve on the output side is opened
during the discharge process to allow the medium
to pass through to the follow-up process.
Once the filling level has been reached, the inlet
valve closes. The medium is held in the filling pipe
until it is discharged. The inlet/discharge volume
per cycle depends on the medium, pressure and
overall installation height of the unit.
DISCHARGINGINTERMEDIATE STATE

3. 2
5
1
3
6
6
4
SPS
CYCLE LOCK SYSTEM SOLUTION
PRODUCT SPECIFICATION
1. Isolation valve at input side with a pneumatic rotary actuator and stop position monitoring:
In principle, any valve – butterfly valve, gate, pinch valve or ball valve – can be used for the cycle lock. Both components (in this case butterfly
valves) are screwed together with the filling pipe in the factory. It is preferable to use single-acting (spring-reset) pneumatic actuators of type
EB-SYS for operating the valves. Stop position monitoring takes place using limit switch boxes of type SBU with mechanical or inductive limit
switches.
2. Filling pipe:
The filling pipe is used for the interim storage of the medium. Depending on the specific properties of the products to be passed through the
valve, cylindrical filling pipes are available, which can also be given different coatings. The geometry can be adapted to meet the customer‘s
specifications – for example in conical form. The chamber volume can be adapted individually.
3. Isolation valve at output side with a pneumatic rotary actuator and stop position monitoring:
The valve is screwed together with the filling pipe in the factory and automated using actuators from across the entire production program.
4. Control unit with visualisation via the touch panel:
In this example, an efficient Phönix PLC with a touch panel is used to operate and visualise the processes. It is suitable for the special challen-
ges faced in high-performance, automated processes and reliably controls dynamic applications and control-specific processes.
5. Optional filling level sensor:
Instead of using preset filling times, material can be passed through the valve in the volume required using a filling level sensor. The partly
insulated measuring probe has been optimised for measuring bulk material.
6. Optimal bypass valves:
Different pressure levels can be bridged with bypass valves. To prevent the sudden blowing out of the material in the case of a difference in
pressure between the inlet and discharge sides, pressure compensation is carried out before filling. This pressure compensation also signifi-
cantly decreases wear of the sleeve because the medium is not blown across the sleeve at a great flow velocity when opening the valve.

4. www.ebro-armaturen.com
post@ebro-armaturen.com
01.2016
The main screen makes it possible to easily monitor the ongoing
process and select the operating modes.
In the main menu, there is a manual operation option, all param-
eter settings are adjustable and the current process values can
be observed.
The cycle can be flexibly adapted to the relevant process in the
menu section “Process times”.
CYCLE LOCK SYSTEM SOLUTION
OPERATION AND VISUALISATION